Spool



March 31, 1936. EN EL- 2,035,644-

SPOOL Filed May 26, 1934 W! TNBSES: I N V EN TOR:

MM Francis H.Engel U flw ATTORNEY Patented Mar. 31, 1936 SPOOL r FrancisA. Engel, Merchantville, N. J. ,7 Application May 26, 1934, Serial No.727,627

2 Claims. (01. 242124) This invention relates to spools and. moreparticularly to the means for attaching the head to the barrel of aspool, and has for an object to provide improved means simultaneouslyengaging and binding the head and barrel, with means for maintainingsuch engaging means in position.

A further object of the invention is to provide a spool comprising abarrel and head with means for connecting the barrel and head in asuperior manner.

A further object of the invention is to provide a spool having a barreland head and connecting the barrel and head in a more economical manner.

A further object of the invention is to provide a spool having a barreland head connected with great rigidity.

The drawing illustrates an embodiment of the invention and the viewstherein are as follows:

Figure l is a view in end elevation of the completed spool,

Figure 2 is a view partly in elevation and partly in diametrical'section of the spool, as indicated by line 2Z of Figure 1,

Figure 3 is an end view of the spool head with the strips inserted andimpressed therein before being introduced into the barrel,

Figure 4 is a view partly in perspective of one of the strips having thepenetrating points, and

Figure 5 is a view in perspective of one of the locking members.

Like characters of reference indicate corresponding parts throughout theseveral views.

The spool of the present invention comprises a barrel i8, tubular inconstruction and preferably cylindrical. The barrel is made of somepenetratable material, such for instance, as paper stock, or the like,although the invention is not limited specifically to the material.

A head H is provided of greater diameter than the barrel. The relativesizes of the barrel and head, as indicated in the drawing, is purelyillustrative, and may be varied practically without limit.

The head is provided with a central opening 12, preferably circular andof the same diameter as the interior diameter of the barrel Ii]. For thepurpose of attaching the head to the barrel, a plurality of strips I 3are provided.

Under the present practice, these strips will be sheet metal, althoughit is to be understood that sheet metal is merely a shop expedient, andthe invention is not limited thereto.

The sheet metal has a plurality of perforations type of press, thepenetrating points l5 are pressed into the material of the head, asindicated at Figure 2.

In this condition the legs inserted are arranged in such relation as tobe inserted into the interior of the barrel l0 and after such insertion,will still remain in the original relation. As shown in the draw'mg,three of these strips l3 are employed, in which case the relation of thestrips will form a substantial triangle, as shown at Figure 3.

The invention, however, is in no way limited to the number of thesestrips, and the relation of the parts will depend upon the number.

After the legs have been inserted into the tubular barrel ill, a lockingmember I5 is forced into the space formed by the inserted legs.

At Figures 1, 2 and 5, this locking member is shown as a hollow tubularcylindrical member, which is the preferred type, but the invention is inno way limited to the central opening, as a solid cylinder will performthe function so far as attaching the head is concerned, the tubular formbeing employed to produce a spool which adapts itself to use better thanthe solid type.

With the locking member I6 forced into the central opening formed by thearrangement of the strips l3, as shown at Figure 3, the inserted legs ofthe strips will be forced to concavity to conform to the cylindricity ofthe locking member I6, as shown at Figure 2, so that the strips l3 soinserted will intimately hug the walls of the interior of the barrelIll, and the penetrating points l5 be forced into the material of thewalls. Also the cylindrical member l6 will be slightly deformed as shownin Figure 1 due to the positioning of the strips I3 between the exteriorsurface of the member l6 and the inner surface of the barrel l0.

The resiliency and roughness formed by the perforation of the strips l3will be suilicient to maintain the locking member l6 securely inposition, which in turn will securely lock the strips IS in position tohold the head I I firmly to its position.

Of course, the spool herein described may be modified and changed invarious ways without departing from the invention here set forth andhereinafter claimed.

I claim:

1. A spool comprising a tubular barrel, a head having a central openingregistering with the interior of the barrel, strips partially insertedin the barrel and having bosses forming penetrating points and formed bylike punchings at a plurality of positions, said points being imbeddedin the material of the exterior of the head and interior of the barrel,the inserted part of the strips being curved complementary to thecurvature of the interior of the barrel, and a locking member intimatelyengaging the curved parts of the strips and held in position by the saidengagement.

2. A spool comprising a tubular barrel, a head having a central openingregistering with the interior of the barrel, strips having a pluralityof projections defined by spaced punchings and which strips are insertedin the barrel with the projections penetrating the material of thebarrel, and a locking member inserted in the barrel and engaging thestrips to deform the latter into a curvature corresponding with thecurvature of the barrel and locking member, said locking member beingmaintained in position in the barrel by the engagement of the stripstherewith, said strips having a portion extending beyond the barrelwhich is bent over into engagement with the head with the projections onthe strips entering the material of the head.

FRANCIS A. ENGEL.

